How do you make a person with the same gender fall in love with you?

You can't "make" anyone fall in love. They have to want to do it and it is their choice if they want to or not. Become a friend and learn about them. Maybe they aren't attracted to a person of the same gender, so if that is the case move on to someone who will be. Do not try to trick them or push them into something that wouldn't be nice and you'll loose a friend.